Panasonic F77G User Manual page 394

Chapter 12 Serial Interface 3
Serial Interface 3 Control Register (SC3CTR)
7 6
SC3CTR
IICBSY SC3STC
Figure 12-2-4 Serial Interface 3 Control Register (SC3CTR : x'03FAA', R/W)
XII - 8
Control Registers
5 4 3 2
- - SC3REX SC3CMD
1 0
(At reset: 0 0 - - 0 0 0 0 )
SC3ACKS SC3ACKO
SC3ACKO
SC3ACKS
SC3CMD
SC3REX
SC3STC
IICBSY (*)
* at writing "0", stop condition is generated.
ACK bit level specification
0 "L" level
1 "H" level
ACK bit enable
0 ACK bit is disabled
1 ACK bit is enabled
Clock synchronous /
IIC selection
0 Clock synchronous
1 IIC selection
(at IIC communication)
transmission / reception
mode selection
0 Transmission
1 Reception
(at IIC communication)
start condition detection
No detection
0
Detection
1
(at IIC communication)
Serial bus status
Other use
0
Serial transmission in progress
1